EP 3718644 A3 20201118 - PLUNGER FOR DISPENSER, DISPENSER, AND METHOD FOR DISPENSING LIQUID MATERIAL
Title (en)
PLUNGER FOR DISPENSER, DISPENSER, AND METHOD FOR DISPENSING LIQUID MATERIAL
Title (de)
KOLBEN FÜR SPENDER, SPENDER UND VERFAHREN ZUR AUSGABE VON FLÜSSIGEM MATERIAL
Title (fr)
PISTON POUR DISTRIBUTEUR, DISTRIBUTEUR ET PROCÉDÉ DE DISTRIBUTION DE MATÉRIAU LIQUIDE
Publication
Application
Priority
- JP 2012219900 A 20121001
- EP 13843394 A 20130930
- JP 2013076553 W 20130930
Abstract (en)
The present invention provides a plunger (20) for a dispenser, the plunger including a large diameter body portion (23) provided with ring-shaped contact surfaces (24, 25) that contact an inner wall surface of a syringe, a rear opening (26) formed in a backside of the large diameter body portion (23), and a small diameter body portion (22) provided with a front opening (28), wherein the front opening (28) is formed in a size allowing a liquid material to be directly pressed by pressurized air, and allowing at least the plunger (20) to move following a fall in water head position, which is caused with discharge and consumption of the liquid material. With those features, the liquid material can be prevented from adhering to the inner wall surface of the syringe, and the liquid material in the syringe can be prevented from flowing backwards.
IPC 8 full level
B05C 5/02 (2006.01); B05C 17/005 (2006.01); B05C 17/015 (2006.01)
CPC (source: EP US)
B05C 5/02 (2013.01 - EP US); B05C 17/00576 (2013.01 - EP US); B05C 17/00579 (2013.01 - EP US); B05C 17/015 (2013.01 - EP US); B65D 83/0005 (2013.01 - US)
Citation (search report)
- [A] DE 29907032 U1 19990715 - OPTOSYS GMBH BERLIN [DE]
- [A] US 6527142 B1 20030304 - IKUSHIMA KAZUMASA [JP]
- [A] US 5086953 A 19920211 - TWEDE SHANE K [US]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2905083 A1 20150812; EP 2905083 A4 20160629; EP 2905083 B1 20200909; CN 104768658 A 20150708; CN 104768658 B 20180515; CN 108580180 A 20180928; CN 108580180 B 20210903; EP 3718644 A2 20201007; EP 3718644 A3 20201118; EP 3718644 B1 20220601; HK 1208003 A1 20160219; JP 6382107 B2 20180905; JP WO2014054583 A1 20160825; KR 102129892 B1 20200703; KR 20150063537 A 20150609; MY 177760 A 20200923; SG 10201702196R A 20170427; SG 11201502528X A 20150528; TW 201424856 A 20140701; TW I639471 B 20181101; US 10501256 B2 20191210; US 2015239641 A1 20150827; US 2018009594 A1 20180111; US 9796518 B2 20171024; WO 2014054583 A1 20140410
DOCDB simple family (application)
EP 13843394 A 20130930; CN 201380051538 A 20130930; CN 201810336977 A 20130930; EP 20174895 A 20130930; HK 15108588 A 20150902; JP 2013076553 W 20130930; JP 2014539730 A 20130930; KR 20157011417 A 20130930; MY PI2015701062 A 20130930; SG 10201702196R A 20130930; SG 11201502528X A 20130930; TW 102135495 A 20131001; US 201314432669 A 20130930; US 201715702908 A 20170913